<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            width: 100px;
            height: 100px;

        }
        span{
            width: 300px;
            height: 300px;
            background-color: red;
        }
        img{
            width: 100px;
            height: 100px;
        }
    </style>
</head>
<body>
    <div>你好啊</div>
    <span>你好</span><span>你好</span>
    <img src="./1.png" alt="">
</body>
</html>